This edition of our Heads apart? podcast asks how we get to net zero, and whether we are doing enough to achieve it. We explore whether Extinction Rebellion's recent protests and tactics are justified, how conservatives should respond to the emergence of Extinction Rebellion, and how radical policies to get to net zero should be. We are joined by  Professor Rupert Read, a national spokesperson for Extinction Rebellion, and Sam Hall, the new Director of the Conservative Environment Network and former civil servant in DEFRA.